在分析采场覆岩移动变形规律的基础上,利用“O”型圈卸压瓦斯抽放理论,采用正交设计的原理,对矿井开采覆岩移动变形进行数值模拟,得到采场上覆岩层的“三带”分布规律,并对顶板巷道进行优化设计。通过现场试验,使其达到“一巷多用”的目的,既能实施下向穿层钻孔条带预抽;又能作为高抽巷,抽放上隅角和采空区瓦斯。通过合理化布置顶板巷道的方式,为经济、合理地综合治理单一突出煤层瓦斯问题提供了重要的参考和借鉴作用。 Based on the analysis of the law of movement and deformation of overlying strata in stope, the principle of orthogonal design was used to simulate the displacement deformation of overburden strata in mine and the stope was obtained by using “O” ring gas drainage theory. Overburden strata “three belts ” distribution law, and optimize the design of roof roadway. Through the field test, it can achieve the purpose of “multi-use for a lane”, which can carry out the pre-pumping of the drilling band down through the strata and can also be used as the high-pressure drainage tunnel to extract the upper corner and the gas from the goaf. By rationalizing the layout of roof roadways, it provides an important reference and reference for the economic and reasonable comprehensive treatment of single outburst coal seam gas problems.